1.Can I get some samples? Yes, sample order is available for quality check and market test. 2.Can I mix different models in one container? Yes, different models can be mixed up in one full container. 3.What colors we can choose? Any color is available. 4.Can we do our logo or brand on the bike? ODM service is our advantages. 5.What's your payment term? Generally, our payment is TT, but other payment can be negotiate. 6.How long does it take to receive the goods? Object to different type of model and the quantity of your order. 7.Can you deliver samples by DHL or FEDX? The freight by DHL or FEDX is very expensive because our products contain battery .It usually costs more than the electric bike value, so we suggest you choose sea shipping.